Automatic journal-box take-up.



HAY.

AUTOMATIC JOURNAL BOX TAKE-UP. APPLICATION Hmm APR.11.1913.

Patented Aug. 25, 1914.

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W//Twfssfi /N van To block 25 and fastened to the two bars 5. The plates 9 support a block extension between them having a screw-threaded bore into which the threaded end of a shaft 26 is screwed, and the other end of this shaftY is journaled in the block 25. Splined or otherwise secured upon the shafts 24 and 26 are the gear wheels 27, the teeth of which engage the threads of worms 28 (see Fig. 2 and shown in dotted lines in Fig. l) mounted on suitable transverse shafts above said gear wheels. Mounted on one end of each 'of these shafts is a circular disk 29 having an annular flange 30. A pair of friction pawls 31 and 32 for each disk 29, act in conjunction with their flanges `'30. The upper ends of the pawls 31 are pivoted to a connecting rod 33 by which they are connected with the upper end of the lever 14 and the lower ends of the pawls 32 are pivoted to the lower bar 5. The inner ends of each pair of pawls 31 and 32 are separated from each other by means ofV springs 34. The pawls 31 are in oppositely oblique relation to each other and thesame is true of the pawls 32. An oscillatory movement transmitted to the pawls 31 by a reciprocating movement of the connecting rod 33 will cause said pawls to clamp against the flanges 3() of their respective disks and move the disks in the directions shown by the arrows. Back movement of the disks is prevented by the pawls 32. This construction above described is for the same purpose as the ordinary notched wheel and ratchet construction and is preferable because the pawls will take frictional hold of the flanges 30 at any point of the latter thereby permitting of a closer adjustment than would be possible by the use of a toothed ratchet wheel in which the adjustments would be limited to the size of the teeth.

In the construction shown in Fig. 1, the pin 10 is provided with annular flanges 36, preferably with oblique inner faces to contact with the bore of brasses 11 and 12 to prevent the escape of lubricating oil from the journal. The barsv 5 are provided with inwardly extending flanges V37 which prevent lateral displacement of ythe bearing brasses 11 and 12 and block 13.

Undue looseness of the levers 14 and 15 is prevented by a friction plate 38 which is pressed by a spring 39 against the lever 14 and the lever is thereby pressed against the bar 5. The tension of the spring 39 is regulated by a set-screw 40 which passes through a hole in the plate 38 and a transverse slot in lever 14 and is seated in a threaded hole in the bar 5.

In the operation of my device, any looseness due to wear of either of the brasses 11 or 12, will produce an oscillatory movement of the levers 14 and'15 which will continue until the brasses have been moved in far enough to take up such looseness. The oscillatory movement of lever 14 acting 'through the connecting rod 33 and pawls 3l will rotate the disks 29 in the directions of their respective arrows and this movement .of the disks transmitted through their worm gear connections with the threaded shafts 25 and 26 will move the block 13 toward brass 11 pressing the latter against pin 10, and will move the threaded block extension of plate 9 in an opposite direction thereby drawing the stems 7 of the attached yoke along with it and causing the extension 8 of the cross bar betweenstems 7 to move toward the pin 10 against the brass 12 forcing the latter into contact with the pin 10.

In the modification shown in Fig. 4, which is for a connecting rod or pitinan connected directly to the piston (not shown) by a pin 41 at one end of the rod and with a crank pin 42 at the other end of the rod, it is not essential that the axes of the two pins 41and 42 be maintained the same distance apart, because there is ample room in the cylinder of an internal combustion engine for the stroke of the piston should the distance between the axes ofv said pins be somewhat increased. Therefore, I am able to adjust both of the inner brasses toward their respective pins which will be suiiicient to keep all of the brasses tight and by connecting this take-up mechanism with a pair of levers similar to levers 14 and 15, bearing against the crank pin 42 I am able to automatically tighten the brasses for both pins 41 and 42 as the wear on either set of brasses occurs.

rlShe inner bearing brasses 11 are contacted by the blocks 13 slidingly mounted in the pitman frame. Both of these blocks have bores to receive the ends of a shaft These n ends of the shaft 44 are screw-threaded, the thread on that end which is toward the piston pin 41 being preferably of a hner thread and reversing direction from the thread on the end of the shaft on the crank pin 42, whereby, when the shaft 44 is rotated in a direction to move the block 13 nearest the crank pin 42 in the direction of said crank' pin, the other block 13 will be moved toward the piston pin 41, but'more slowly, which is desirable on account of there not being as much wear on the brass members of the pin 41 as there is on the brass members of the crank 'pin 42.

Mounted on the shaft 44 is a gear wheel 45 which meshes with a. worm 46 on the same shaft on which disk 47 is mounted. The disk has a `peripheralflange which is frictionally engaged by the pawls 31 `and 32, and the pawl 31 is connected by a link bar with the upper end of the lever 14. This lever 14 and its companion lever 15' in the same manner as has previously been described for the construction shown in Fig. l, and the two levers 1li and 15 are connected together at their upper ends in the manner as described for levers le and 15, and it is therefore believed that a repetition of the construction and operation of these parts is unnecessary.

While I have described my invention with more or less minuteness as regards details of construction and arrangement and as being embodied in certain precise forms, l do not desire to be limited thereto unduly or any more than is pointed out in the claims. @n the contrary, l contemplate all proper changes in form, construction and arrangement, the omission of immaterial elements, and the substitution of equivalents, as circumstances may suggest er necessity render expedient.

claim:

l. ln a journal for rotary shafts, a pair of bearingsbrasses disposed on opposite sides of the shaft, screw-operated means to move the bearing-brasses toward the shaft, and

means comprising a lever bearing against the shaft for actuating said screw-operated means. Y

ln a journal for pitmen shafts, two pairs of `bearing-brasses one for each pitman shaft disposed on opposite sides of said shaft, means for mutually adjustingl the two sets of brasses, and means comprising a lever contacting the shaft to automatically adjust the bearingbrasses to maintain the original axial relation of the two shafts.

3. ln a journal `for pitmen shafts, two pairs of bearing-brasses one for each pitman shaft disposed on opposite sides of said shaft, blocks contacting with the brasses, screw-operated means for mutually adjusting the blocks, and means contacting the shaft for operating said screwmeans.

it. ln a journal for rotary shafts, a pair of bearing brasses disposed on opposite sides of the shaft, screw-operated means to move the bearing-brasses toward the shaft, a pair of levers disposed on opposite sides of the shaft and having extensions bearing against the shaft, and means operated by said levers for actuating said screw-operated means.

5. ln a journal for rotary shafts, a pair of bearing-brasses disposed on opposite sides of the shaft, blocks contacting with the brasses, screw-operated means for moving the blocks in a direction to press the bearing-brasses toward the shaft, a pair of levers disposed on opposite sides of the shaft and having extensions bearing against the shaft, and means operated by said lever for actuating said screw-operated means.

G. ln a journal for rotary shafts, a pair of bearing brasses disposed on oppositesides of the shaft, blocks contacting with the brasses, screw-operated means for moving the blocks in a direction to press the bearing brasses toward the shaft, a pair of levers disposed on opposite sides of the shaft and having extensions bearing against the shaft, and pawl and ratchet means ope ated by said levers for actuating said screw-operated means.

7. In a journal for rotary shafts, a pair of bearing brasses disposed on opposite sides of the shaft, blocks contacting with the bearing-brasses, screw operated means for moving the blocks in a direction to press the bearingl brasses toward the shaft, a pair of levers disposed on opposite sides of theshaft and having` extensions bearingl against the shaft, elastic means cormectingI the free ends of the levers, gears for rotating said screw means, and pawl and ratchet means operated by j said levers for actuating said `gear means.

8. .ln a journal for rotary shafts, a pair of bearing brasses disposed on opposite sides of the shaft and of the same longitudinai dimensions as the diameter of the shaft whereby each bearing b'ass will have two ends tangent to the shaft, gear operated screw means for independently moving each of the bearing brasses toward the shaft, a pair of levers disposed on opposite sides of the shaft and having extensions contacting with the shaft, and means connecting the levers with the gear means of said bearing brass adjusting screw means.

ln witness whereof, I, have hereunto set my hand and seal at Union City, Indiana, this 3d day of April, A.. D. one thousand nine hundred and thirteen.

lUllN T. HAY. [n s] Witnesses 'l'. A. Snooltivny, ALMA Wann.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of IPatents, Washington, D. C. 

